Printing telegraph apparatus



- 1942. c. w. SWAN 2,273,910

PRINTING TELEGRAPH APPARATUS Original Filed July 5, 1940 2 Sheets-Sheet1 FIG. 1

Q f 3 I8 o o O I 0 55 26. 0' r 0 52 I 9 53 I 38 I5 96 95 INVENTOR CARLw. SWAN FIG. 2

I BI/ Z 06 ATTOR Y Feb. 24, 1942.

PRINTING TELEGRAPH APPARATUS Original Filed July 1940 2 Sheets-Sheet 2FIG. 3

u Ill I ll VII/II.

INVENTOR CARL w. SWAN ATTORV EY V c. w. SWAN 2,273,910

Patented Feb. 24," 1942' v I 1 2,273,910

wea

F1 ij i ie p csr1w; Swan, ChicagoQIlL, asslgnor to Teletype i"Corporation; "Chicago, 1115; a corporation of "origin l applicationJuly 5, 1940;s ria N6. 244,098. Divided and this applicationDecemtel-23,1940, Serial'N0. 371,353 v {100mm, (C1'.164- '113- ff' V t,

present invention relates generally 'to Fig. 4 is a sectionalview takensubstantially perforating apparatus and more particularly to on line ofFig. 3; A improvements inlperforating' elements therefor. Fig. 5 isanenlarged sectional view of a pr-. This application isa division ofapplication tion of the punch block; I a Serial No. 344,098, flled July5, 194 p j Fig. 6 is an enlarged 'plan view of the die Th primaryobjector theinvention is to proplat e according to the presentinvention;" 1 vide in a-periorator' for producing controltap'e Fig. 7 isan enlarged planviewlof a strip of having lidded apertures; meansiorleveling the printed ta pe perforated in accordance with the hingedlidupon its ejection ifrom the, ,d ie plate. method'of the presentinvention;

pn' \deviees flthe type according to the ig. 8 is-an enlargedsectionalview taken 'on present invention have been arranged'to out out line 8--8Fof Fig. 7;

the perforations completely at a singlefmove; Fig. 9 -is a view ofthe-selector magnet parment, therebyfproducingchadsor pieces of wastetially deleted from Fig; 3; material which often presentfdiflicultproblems Fig. 1 0 is aview similar to Fig. '5" showing of disposal."Toavoidthenecessity of dispos 1;! punchlelements'in operated position;and I ing of this waste material by preventing its Fig. 11 isanjenlarged'perspetive-vview ofa formation, the present" invention"p ro'videsf aportion of the signal control strip, produced acperforating arrangementwhereby the perforacording to-the present invention; to show a tiO'llSare not completely cut out; but the. chads lidded aperture.

' arepermitted to remain attached to the "perfo- Since the'disclosureherein set io'rthis in the rated material (for"example,tape'),the preferred nature of an improvement'of the printingtelearra'ngement being such that the punches are graph receiverdisclosedin UQ S. Patent 1,745,633,

utilized "to so pierce the "material as to leave "an t or similarprinter mechanisms operative to propuncutportionwhich servesas ajhinge',thus rea erly select thevarioustype elements, move the' suiting in'f'ahinged lid which will yield to the tape'iorward, move and reverse theinking ribbon sensing pins in a telegraph transmitter when the (as-on a"standard typewriter), and shift the tape is employediorautomaticcontrol ofsignal platen for figure case characters, only so muchtransmission y V v of the-mechanismof said patent will be herein- Toenable the preparation of signal control after set forth as is necessaryto an understand-' tapein accordance'with the resent invention, Q inn;of the pr s n inv n i n- Ref' r n m y thelpunchblock is modified byhaving; a portion be'had to saidpatent for a full understanding of themetal of the'die plate surrounding each of theprinter mechanism notdescribed hereinhole removed, which permits the corresponding after indetail.

edge of the resultant lid to remain uncut after The Present inventionprovides perforating operation the punch; :Inorder t t t i mechanismadapted for" association with a may be freed from the die platevtopermit ub-, Pu r the p rpose of whi h is o p ra e sequent advancement ofthe tapeladvancing Withthe printing mechanism in such a mannermechanism, a stripper or ejector, guided'by the 5 t p o ate a tape so as,to provide lidded die plate and a bracket mounted; thereon and u esprinted message correspond 3 embodying the present invention;

operated by a compression spring, is, provided ,0 to the Perforatedrecord pp s n a d p for each punch in the punchblock; i i e tly'overthehinged lids and remains .fully A more complete understandingof'theforereadablepresent invention, of o i going objects and features'of theinvention may not limited to type pr ilfer vexemplifi y be had from thefollowing description when the n io ed patent butany prmtr to tconjunction t t c qm a which the invention is applicable iscontemdrawings, wherein like r'eierence characters in- -Dddicate'thesame parts throughout, and wherein: disclosed theabove-mentioned Fig. 1 is a perspective'view of the'apparatus' t e plaen' l l (Figs. 1, 3, and4) over which the paper tape passes from rightto'l'el'tis located Fig. 2 is a sectional view of a keyboard-perm; inthe front and centralpart of the apparatus.

' t br i c rtain features of theinven However; the platen used in thisinvention is of on; k diflferentfconstruction, comprising as willherefig a planwiewpf the apparatus'shown' maiterappea ,a cylindricalplunger carried in 1mg; w certain parts plrokgnl away a rectangularblock and shiftable in the manner clarltm 7 5o set-forth in said patentsr spool only of which is shown be pulled notches in the'code function;As indicated atlng bars IQ are articulated to the type bars ,|2'

responding in number driven by a main Arranged above the platen H is theribbon feed mechanism indicated generally as 19, the left in Fig. 1. Theink-- ing ribbon I is directed in well-known manner over platen II fromone spool tothe other; automatic ribbon reversing mechanism also beingprovided. Type bars 2 are positioned to the rearof the platen and arearranged for striking for- 1 wardly and downwardly. Just to the rear ofthe typebars |2 is a series which in the present instance aresubstantially semicircular inshape. Actuating bars l4 for operating thetype bars l2 are located immediately in front of the code bars |5, andare adapted to selectivelyaligned for a particular character or in saidpatent, the actuthrough a gear and rack means, The selectin forselectively operating 'thecode bars It isn't the swordand-T type, fullydisclosed in said patent. Briefly, this selector mechanism comprises aselectingorreceiving electromagnet' l1 (Figswl, 3 and '9),-the armaturelever I! of which comprises a selecting arm |9 having abutments 2% and22 which co-operate 'withabutments 23 and 24 of a series of swords25.The armature lever I8 is responsive under certain conditions to theenergization of themag'net I1 of notched code bars l5 one ata time 'intothe alignment of bars l5 when the notches are:

a 92, carrying its associated and 48. Accordingly,

' operates with.

(for example, upon receipt of marking or. current impulses) and underother conditions to'the pull of a spring 26-:(for example, upon thereceipt, of no current. or spacing impulses), the tension of springbeingadjustable by-means'of screw 21. The swords 25,'of which there is aplurality corto the series of] code bars It, are brought into operativeengagement with the selector arm l9 by their individual operating 28pivoted on a common pivot rod 29. Swords 25 are pivotally articulated byasocket connection to their individual levers 28. Each of the leversj28is provided with an arm 3| and is normally biased in V thepivot29 by aspring 32. Arms 3| co-operate with a series of helically arrangedprojections 53 on a selector cam drum 34, which'is frictionallyoperating shaft located in a perpendicular position right of the codebars IS. The main operating shaft 235 is driven continuously by a motor-55 through a pinion 31, secured to the motor shaft 52, which pinionmeshes with a gear (not shown) oper'atively associated with shaft 35. A

As fully described in the aforementioned pat ent, the cam drum 24isinitiated into rotation upon receipt of a starting impulse whichcauses the de-energization leasing the armature lever I8 which thenresponds to the pull of spring 26 to rotate the lever it in a clockwisedirection. Upon this movement, an eccentric screw 4| (Fig. 9) co-operates with a plunger 42 which acts .in the mannershown in Fig. 5 ofU. S. Patent No. 1,884,743 to release, through alever arrangement, astop arm .(not shown) to initiate rotation of cam 34; I g

The speed of rotation of selector cam drum '34 is synchronized with-thespeed of code impulsing so thatas the armature lever at the rear and tothe of the magnet thereby re I8 is operated in response to receivedimpulses, a cam 33 acts upon for example, if abutments 2| and 23co-operate, then the sword 25 will be swung in a counterclockwisedirection and will assume the position shown in Fig. 3. ments 22 and 24co-operate, then sword 25 will be swung in a clockwise direction toassume the opposite position. After the sword 25 has been set inaccordance with the nature of the signal impulse and the cam 25 passesout of operative engagement with arm 3|, the lever 28 will be actuatedin a clockwise direction by its spring sword 25 along with it to impingethe sword 25 against arm 43 or 44 of a T-lever 45 pivoted at 46, thusrocking the T-lever 45 in a clockwise or counterclockwise direction.Each of the T-levers 45 is pivotally articulated to a code bar It sothat when a T-lever 45 is actuated in a clockwise or counterclockwisedirection, its associated code bar is actuated leftwardly orrightwardly, respectively, on studs 41 v with the selecting mechahimjust described, the code bars l6 are set selectively in their rightwardor leftward positions in response to the impulses of a code signal.

As described inPatent 1,745,633, thesetting of the code bars I5 ismaintained during the printing operation by "a detent or locking means.Ac-

cordingly, a locking bar 49 is provided which cobeveled notches 5| oncode bars l5. Bar "49 ispivotally mounted andfis moved into," and out'ofengagement with the code bars It as the striker bar .or operating bail52 israised and lowered. Thebail 52 is operated by a cam (not shown) onthe main shaft 35, in a manner described in Patent 1,745,633. Whenthebail 52 is in its lowermost position, it co-operates with the bevelededges 53 of the bars l4 and 49 to hold such bars out of engagement withthe code bars l5 so that the code bars It may be readily a clockwisedirection about itsassociated lever 28 torock it counterclockwise (asviewed in Fig. 3) to bring its sword 25 against selector arm i9. Sword25 will be swung clockwise or counterclockwise, depending on whetherabutments 2| and 23 or 22 and 24 co-operate;v

.shiftedin accordance with the operation of the selector mechanism. Whenthe ball 52' Is'operated upwardly to perform a .printing operation,

the bars [4 and 49,' due to the beveled edge 5:,- are permittedgradually to be actuated toward the code bars It by their individualsprings 54. The actuating bars H are provided with a hook portion 55which co-operates with the bail 52, which in its upward movement engagessaid hook 55, to lift the actuating bar II, which through the rack andpinion engagement with the type bar causes the type bar to rotate aboutits pivotto bring the type face downwardly to impinge upon the platenThe locking bar 49 is not pro-. vided-with a hook portion 55. Itsfunction is merely to rock-on its pivot toward and away from the codebars I6 under the control of the bail '52 to lock the code bars l6 intheir set position during the printing operation.

According to the present invention the locking bar 49, while held in itsposition away from the code bars II when the ball is in its lowermostposition, co-operates with a series of bell cranks 56 (Fig-'3) to holdsaid bell cranks in counterclockwise position. 'Bell cranks 56 areprovided with shouldered portions 51 through the, instrumentality ofwhich the bell. cranks 56 are permitted or prevented by code'bars I6from rotating to their clockwise position. That is,

; if anyone of. the code bars I6 is set in the posi- 'tion indicated inFig.3, and the locking bar 49 is permitted to' enter the V notch, thebell crank 56 associated therewith is blocked through theimpingementof'shoulder 51 upon theend of the associated code'bar I6.Onthe other hand, if a code bar It assumes its leftward position, thebell 0n the other hand, if abutcrank a t ic insl' which, nt intocorresponding notches in; a series ofinterponents,; 681 (Fig; "4)whereby the v T bell cranlr levers ,fiiarepivotally articulatedito J j Ithe interponents 68, Interpo n ents 88 are slid ably arranged in acradle 89 pivoted at II to the .bracket 68 and-are providedaneartheleft-hand,

v or marking crank? 93 a sented therewith would not be ant-a510 followthe move ent or the ioenngybarn; he

I viewed inll ig, litis observed that there is profvideda' bell crank 58for each 'of'the code bars". I I I II I can vliicarried on the Ixnainoperating'shaitfffl.

A SI actsupon lever!" to lioldcarn roller v Co operating with esteembe1l .cranks u ends of levers SUcc-Operatewith ,is a'verticaljlever 58pivotedpn a common stud end of each oi'thelevers fl co operates withfanarmiof;its,associated' .bell crank 5's. 'Thelower I] n, writi g lever isis pivotaily mounted a pivot; rod II supported in Inns 92 and 98 ofbracket 83. Asviewed in the operating lever I9 ispr'ovided with anextension Matthe {extremity O which is mounted a'cam follower roller-I85 whichco-operateswith the operating .85 against the peripher of cam88. I

Supported in the bracket L63 isa punch block 1 indicated 'gene'rallyl as91 in which carried va a icorrespondinggseries of lbeil 6 I T pivotallvcarried on 'a co to plate; fiheiserieslof bell cranklevers I A 8 I i cobperatjes w ith. a corresponding series of bellflcrflnk tleversf 8 5,fpiv'otally supported on; a a pivots'tud QBYsecuredtoQthe bracket 83,'I'he hell 1' mm'on shaft 62, Levers", and SI arepivotally'iinountedo'na. bracket 83 secured crank flevei'sj 65 are' normally ur'ged in' afewerxw serdi tmn bymdiv u ls cs t ime leassociatedfwith the ,bell cranklevers springs f ascend; serve iinpa'rt pthrouhitheirgco-operat'ive,relationshinfrbtationai movement to levers 6 I, u a'r'id 556, The;depending ,arms of "hell levers 65 are providedQwith enlarged poruppertedge with a cutaway.'portion=;-I2 adapted "series ,,of punchelements 13. Each of the punches I3 ,is providediwith an enlargedsection I I 8 I the, upper edge of which co-operates with a stripperniemherv Inland the lower edge of which 1 co operates with a'backstopplate I03. I Stripper \inernber I (is urged downwardly by springs I,tothe're y hold the punches" in their lower positions freefthedieplateJiISL As shown in the enlargedsectionalview,Fig. 5,'the P 191 I3 is shown fitted into a guide plate 88 withits'upper face slightly;below thefuppersurface f said guide"platei jDisposed above the-guideplate" 88Iis the die plate I05," shown in plan view 'in' Fig. fiu j' Ihedie plate I 'i's so sheared along edge I88 as remove a" portion of themetal surrounding each ofvjthe, holes I I01 and e I08 holes I01 'beingrepresentative ofj'the code punch holes andwhen the' die' plate I5 isarranged above the die plate t ajasfshownlin Fig.5, the punches 13, when1 operated upwardlyvinto co oper'ation with the tot-clearassociatedpunches'n whemsaid inter .ponents -are int "at-icertainoperative, position. I Interponents 68 terminate atfthe left'ends thereof "with an enlarged portionll wherebytthey are Y adapted toco-operatewith the punches" when die plate I95 "(a di a e i P e 0. Wilem raway only'a portion ofvthe tape rnaterial, leavingasnallhingetpcrtion H0 at the le ft -side of p the punchuncut (as viewed inFig, 7), thus fore-- f M ing the partially perforated lid, formed byeach the interponents 68 are operated-to their rightward position; asviewed in Fig. 4; Cradle 68 is provided with a projection anism. 1 when3; the interponents 88 assume their rightward positio'n'.-' Conversely,when the bell I adapted toc'oopere I I ate with a feed' holef punch 1(not shown) to invariably perforate a -tape feed hole'in. theta'pe I24for each operation of the peri'oratingx'nechthe bell'crank levers 56"are" held in their counterclockwise" position shown Jin'f'-,punch;;,upward ly into the diefplate holes. During the punchingoperation, a slight -ptearing or shearing occurs at the point I (Figs. 7and 11) I of the hinge IIii (Fig. 10), as well as "a very slight arearranged to -be guided at their lower ends by crank'leverstras'sumetheirfclockwise position,

1 interponents 68 assume 'their' le'ftward or spac.

'ing position, as shown in Fig.4.

pivotally connected an extensible 'link indicated generally as It oneend of link 16' being pivoted at I! .to arm 15 and the other'en'd oflink 18 being pivotally connected at 18f toa perforator-operating lever19. In-thep'res'ent" form of the :oted at 'llito' slidably connected andadlus'tably mounted on t readily adjustedby loosening the: clamp screws88 I? and and inserting a screwdriver or similar instrument betweenthelugs 81 and 89 or 88 and lengthened er shortened, and twisting'saidflinstrunientuntil the proper 'lengthis attained. whereafterthe clampscrewsare tightened.

I r ia xtfi ;"km? v- 563mg upwardly, to the extremity which is -Iinventiomthe linkli' comprises one part 8| piv 7 arm and a part pivotedat 18 f I'totheoperating lever 19. Parts 8I and 82'are' 8,9;qdepending;upon whether linkli' isjto be stretching of thetape material. To-ejectthe hinged 1m thus formed from the die m te, wa

,strippertn einber-Iiis is provided to co-operate with each punch ll.Strippers or ejectors I09 the die plate I05 and at their upper ends hy.a

'Z shapedbracket, I I I attachedto the. plate I05,

and; a compression,sp ri ng H2 is provided for each ejector I89to urgethe ,ejectors I09 downwardly, The ejectorsllll when intheir downwardposition are adapted to'extend slightly below the die platesIIlS so asto insure the ejection ofthe hinged lid produced in thelmaterial or tapeworked upon,- After ejection in this manner the "hinged lids are'slightly in relief, as a result of which the-uppersurface ofthe tapemay-be readily determined.=; v I

t Itis understood; that the resultantposition of the lid I25withrespectto thestrip I24 is dependent upon the properties of thematerial'of which the strip iscomposed, aswell as the'thicknessthereof-.; For example, in a paper strip; the lids I28 take the form orposition substantially as shown in Fig; 11-, due to the inherentchar-'s'i'cteristics of the paper, "such as thinness and I resilience. Asthequality of the material worked upontends toward softness, the lids I25assume 'aposition in'relief, substantially as shown in Fig. 8, whereinthe plane fofthe lid I25 would tend towardparallelism with the plane ofthe (The tape, after I being partially perforated in this manner, passesover a tape feed roller II3 'ole I88 representing the feed punch hole.

which is provided with a series of spaced feed Ill adapted toco-operate,

" pins or projections with the 'lidded feed holes formed by thefeedvided with a series of toothed grooves I Ii thumb portion may berotated manually jeither clockwise or Therefore, toperform a backrotatedclockw rations corresponding thereto.

punch and die plate. The feed roll II3 is pro- Y which co-operate with atape feed pawlll I6 pivotally carried on the cradle 09 in well-knownmanner.

Fixed to the shaft to which the feed roller III operates with a'detentmember I I8, pivoted at I II to the bracket 03, having a spring I2Iwhich urgesthe d'etent roller .into engagement with the stanwheel'l I1.Fixed to the star wheel II1 is a I22, whereby the-feedroller III spacingoruratiorr. the thumb portion I22 is so asto move thetaperightwardlypaaifliwed in Fig. 5. in order that the counterclockwise.

perforated tape may be readily moved right wardly for a,-ba ckspacingoperation, each of the ejector members I is provided with a wing portionI having an inclined lower edge, so thatas the. tape is movedrightwardly, any of thehinged L lidsv which'may be projecting upwardlyat an angle will "be cammed downwardlyby the wing portion I23so as toclear the die plate I05. In Figs. 7, 8, and 11 is illustrated a portionof the tape printed and/ or perforated in accordance V with the presentinvention. The tape I24 is perforated in such a manner that the lids l25are is raised to rock lever I16 about its pivot I11 "is securedis a starwheel II1 (Fig. 1) which co the opening provided therefor. As shown in,7, the'printing appears directly over the "I; hinged lids as if thetape had not been perforatedandis readily legible. In the specificembodiment' of the invention herein shown, the H perforatedcodecombination is six steps in advance of 1 the corresponding printedcharacter.

That is, the code'combination represented by the transverse row I26,Fig. 7, corresponds to the letter Q in the work quick. Of'courseit isunderstood-that if a wider tape is provided, the characters printed canbe printed adjacentto the transverse row of code combinations of perfo-It is conceivable that tape havihg prepunched feed holes would hedesirable under certain conditions. In this event,

the feed hole I (Fig. 7) would be indicated as fully perforated insteadof being provided with ahinged lid.

As indicated in-Fig. 1 each type bar I2 is provided with two type faces,thus necessitating a case shift mechanism, which comprises means- I i.f,or shifting the platen II.- As shown in Fig. 4 ,r-theplaten II isillustrated as consisting of a {cylinder capped-with a hard rubber (orother suitable) printing surface, Platen II is removably-held in a block99 slidably mounted on a shaft I00 which, in turn, is slidably supportedinbrackets 03 and I21. Fixed to shaft I00 is a collar I20 against whichthe block 99 is held by a spring I28 surrounding said shaftandcompressed between block 99 and a shift arm' I29 also fixed to saidshaft. Block 99 is slidable rearwardly on shaft I00, through theinstrumentality of an arm; I30-fixed thereto, against the action ofspring I20, to bring the platen II from beneath the tape and inkingribbon, so thatsaid platen thereby becomes accessible for ready re-'movability and interchangeability. The platen -figures position. Toreturn platen II to the letters" or unshift position (shown in Fig. 3)

the actuating bar' I15 is selected, which when raised by bail 52 rockslever I8I about pivot I02, and in turn rocks member I83 about its pivotI" to actuate shift arm I29 rearwardly until arm I29 is again latched byend I18 of lever- I10. It is manifest that platen II is shiftable undertwo operating conditions, one selectively in response to received codesignals to shift or unshift positiongand the other manually throughtheinstrumentality' of arm I30 to render the platen II accessible andinterchangeable.

1 GENERAL OPERATION In the operation of the apparatus according to-thepresent invention, .the motor 36 is considered to be runningcontinuously, and thus rotates the main -operatingshaft 35. Carried onthe main operating shaft 35 are sleeve members rotatably associatedtherewith through clutch members asdisclosed in Patent 1,145,633, whichsleeves are normally held against rotation. The selector magnet I1 isnormally energized so that upon the receipt of a start impulse ofspacing nature, the magnet I1 is de-energized and its armature lever I0is released under thetensionof spring 26 wherebythe stud 4| thereonurges the plunger 42 leftwardly to release through a series of levers(notshown) the sleeve members on the shaft 45 for rotation in timedrelation to each other. As indicated in the Patent 1,745,633,

.the cam drum selector 34 is released'for rotation so that the camprojections 33 thereon operate levers 28 in. such a manner that throughthe cooperation of selector arm I9 therewith the swords 25 are caused toabut said arm I9 and are actuated to one or the other of their selectivepositions. The operative relationship of the abutments on the swords 45and selector lever I9 are determinative of the positions of .said swordstooperate the IT-levers 45 to one or the other of their operativepositions, the T-levers in turn actuating the code bars It to theirrightward or leftward position in accordance with the received codecombination. 7

In timed relation with the rotation of cam drum 34, the sleeve carryingthe cam (not shown) for performing the several functions of the printerand the operating cam 98 is initiated into rotation. The cam (not shown)operates through mechanism, not here shown but described and shown insaid Patent 1,745,633 to reciprocate the bail 52 which, on its upwardmovement, permits the actuating'bars I4 to respond to the pull of theirindividual springs to be urged intoengagement with the code bars I8, oneof these actuating bars finding an alignment of slots or s to beactuated leftwardlyto mate the code tars, I6 nd time traveling orrotating farther so as to bring its hook portion 55 into the path of thebail 52, so that the bail 52 in its upward movement, picks up the hookportion 55- and raises the selected actuating bar to effect rotation ofthe type bar I2 associated,

therewith through its rack andpinion connec-.

tion. The type pallet on'the type bar is.

therefore caused to impinge upon the. platen II to print a character onthe "tape interposed therebetween.

Simultaneously with actuation of the type bar, I

for printing a character through the operation of the actuating bar I4by bail 52, the locking bar 49 is permitted to respond to the pull ofits spring 54 sothat the upper edge of the lock- 1). ,However, when anyone of the. code bars I6 is in its rightward position,the shoulder "51of lever 56 will strike against saidcode bar and the corresponding bellcrank-lever 56 will be blockedagainst movement. Therefore, the'levers56, bell crank levers 6| and 65, and interponents 68 associatedtherewith will haveino motion or movementimparted thereto andwill.assume the position opposite to thatshown in Fig. 4, that register withthepunch I3. However, when any one of the code bars I6 is inits'leftward posi-' tion, the shoulder 51 of lever 56 will not beblocked by its associated code bar I6 and will be permittedto rotate ina clockwise direction under the action of spring 61 throughtheinterconnected levers 65, 6|, and 58. This movement will cause theinterponent 68 (Fig.4) associated therewith bring the portion I4 of theinterponent 68 out 'of register or alignment withthe punch I3. Inproper'timed rela-; tion with these operations, the team 96 for oper?ating the perforator will actuate th'eperforating' lever 19 clockwise,as viewed in Fig. 4, so that, through the link 16, the cradle 69 will berocked clockwise to bring all of the interponents 66, which have notbeen moved, into engagement" is, with the portiton .14 of interponent 68in .with their respective punches 13, thus urging said punches upwardlythrough the tape. As the cradle 66 is permitted to rockbackward to itscounterclockwise position, the stripper plate I04 acts towithdraw thepunches I3, andthe ejectors I09 act to expel the hinged lids from thedie plate I05.. Thus, there is produced with, the present invention aprinted and perforated tape, as shown in .Fig. 7. I

I j Modification v The present invention is applicable to a keyboardperforator such as isindicated in Fig. 2. The keyboard perforatingdevice illustrated is of the type shown in U. S. Patent 1,965,572,.andFig. 2 corresponds to Fig. 4 of said patent. Although associated aperforator mechanism indicated generally as' I32, and a transmittermechanism indicated generally as I33. Supported in said housing onbearings I34 and I35 isa key lever pivot rod 136, ,on' whicharepivotally'supported at levers I31, whichat their rear extremities keytheir forward ends are provided with keytops I40, as indicated in Fig.1,key. levers I31 and, disposed transversely thereof are a pluralityofpairs, of code bars I38. Each pair offcode'bars I38 is supported at eachend ona- T-shaped lever I39. QEach horizontal arm provided with 9, lugI, the lugs JI 4| of each fr-lever I39 being oppositely directed so thateach lug llI supports a code bar of each pair. T-levers I33 arerockableabout pivots I42. The bars of each pair of code bars I38 arecomplementary; that istosay, each bar is coded oppositely to itscompanion so that the high portions of onebar 'are opposite the lowportions I43 of its companion bar. The connection between the code barsI38 of each pair is such that the simultaneous depression of more I thanone key lever is prevented. If an attempt is madeto operatesimultaneously more than one keylever, the key levers can only bedepressed part Way when'they will befblockedby the high portions ofthecode bars I38. Connected to the depending portionsof' each of the rockerarms or T-levers I39 is a longitudinally movable per.- mutation bar I44.j t t The perforator disclosed in Fig. 2 comprises a punch block,constructed as shown in Figs. 4 and 5. The, distinguishing featurebetween the punch mechanismshown m Fig. 2 and that shown in theembodiment of the invention disatively associated witheach of the punchinterclosed in Fig L'is that in the former the punch mechanism ismagnetically operated. The punches I45, (Fig. .2) areselectivelyoperated by an actuating member or hammer I through theinstrumentality of interponents' I 41. Operponents I4! is: connected tothe'permutation of'a link I49., Thus, pon the permuted setting of thepermutation bars I44, the punch inter-t ponents I41 will be setcorrespondingly through the movement of the link I49 and the pivoted armI48associated therewith.

The hammer I46 rocks about its pivot and forms the armature of anelectromagnet I5I.

The interponents I 41 are moved back and forth along the face of thehammer I46, and, depending upon their selected position, the associatedpunch I will be operated. In addition to the several pairsof-codebarsl38, there is provided anadditional bar (not shown) which isoperated by the ke'ylevers' I31 invariably, to cause through its,associated permutationbar I44, link I49 and a lever I48, thefclos ure of,a contact I52, which is connected in the operatingv circuit for theFig.2 illustrates also a transmitting mechanism The perforator indicatedY electromagnetically operated 1 type, as distinguished from themechanically opelectromagnet I5I. Upon each setting of the permutationbars I44, the electromagnet I5I is energized, and the punch hammer'l46will be rocked. clockwise to form a transverse row of perforations inthe tape I53i corresponding to Y the permuted setting of the punchinterponents I41. Also, foreach operation ofthe punch hammer I46 and thepunchesil45, a row of feed? holes, adapted to be engaged by thepin teethof a'feedwheel I54, is perforated in the tape.

' The feed wheel. I54 is mounted on a shaft to which there is alsosecured a ratchet wheel I55 which is adapted to be engaged-by the pawlI56 secured to the end of the punchhammer I45.

I Arranged below the apivo'ted member I48 which is. bars I44 by means,

'gization' of the electromagnet' I5I.

erating portion to engage the next succeeding tooth of the ratchet wheelI55. Upon the de- 7 energization of the electromagnet I5I, the springI51 is effective to cause the pawl I56 to move downwardly and thuseffect the rotation of the ratchet wheel I55, and the correspondingrotation ofithe feed wheel I54 to advance the tape I53 to bring anunperforated area thereof in alignment with the punches I45.

The form of the invention in either Fig. l or Fig. 2 may have associatedtherewith a transmitting mechanism I33, in which event the permutationbars I44 are each provided with a forked member I58 (Fig. 2 Articulatedto member I56 is a depending arm of a locking latch I59 piv-' oted on acommon shaft I6I. In this manner, locking latches I59 are articulated tothepermutation bars I44 and are adapted to be rocked about pivot shaftI6I to either of two positions. Associated with latches I59 is acorresponding series of contact levers I62 for making and breakingindividual contacts I63. Contact le- I vers I62 co-operate withindividual contact cams on cam drum I64 mounted on the transmittingshaft I65, which is provided with a clutch mechanism I66 (Fig. 1)controlled by a trip member I61, as set forth in U. 8. Patent 1,965,572.The latter patent discloses the cam drum assembly I I64 and referencemay be had to such patent for further details thereon. 'Trip member I61co-operates with a T-lever I68 pivoted to bracket I69 and is co-operablewith a universal bail III (Fig. 2) in the manner disclosed in Patent1,965,572.

' In the operation of the transmitting unit, the depression of a keylever I3'I moves the bars I38 permutably in accordance with apredetermined code combination, the setting of which, throughpermutation bars I44, determines the positions of the locking latchesI59. The rotation of cam drum I64 is initiated substantiallysimultaneously with the setting of the locking latches I59 through theinstrumentality of trip member I61 which releases the clutch I66 forrotation, and a locking loop I12, controlled by a cam I13 carried on thecam assembly I64, is permitted to rotate in counterclockwise direction(Figs. 1 and 2) to lock the latches I59 in their selected positions. Thesetting of latches I59 determines whether the contact levers I62 shallor shall not respond to their associated cams on cam drums I64 totransmit, through contact I63, over a signal line to the receivingstation, a predetermined code combination of signaling impulses.Incidentally, as is the usual practice, the receiving magnet II (Fig..1) is included in the line circuit so that the printer of the homereceiver will operate in response to the transmitted signals. Therespective notches in the cams on cam drum I64 are arranged in a helicalprogression so that upon the rotation of the cam assembly I64, thecontacts I63 controlled by levers I62 will be operated successively. Theapparatus herein disclosed is operated in accordance with an equallength letter code, in which each code combination is a permutation ofmarking and spacresponding plurality.

ing conditions and is preceded by a start impulse and followed by a stopimpulse according to the familiar start-stop system.

Although the present invention has been shown and described inconnection with certain specific embodiments thereof, it is of courseunderstood that such disclosure is merely illustrative and notrestrictive, reference being hadto the appended claims to determine thescope of the invention, and all variations coming within the range ofequivalency of the appended claims are deemed to be embraced within thepurview of the appended claims.

What is claimed is:

1. In combination, a plurality of punches, a

die plate cooperating therewith having a corresponding plurality ofholes, said di'e plate having a portion thereof so sheared off as toremove from each hole a similar segmental portion thereof, and acorresponding plurality of spring loaded electors carried by said dieplate.

2. In combination, punches, a die plate therefor having a correspondingplurality of holes, said die plate having a portion thereof so shearedoff as to remove from each hole a segmental portion thereof, wherebyupon the co-operation of said punches and die plate a hinged lid isformed, and a corof spring loaded electors adapted to level said lidssubstantially into the plane of the worked material to facilitateshifting of said material between successive operations.

3. The method of forming lidded apertures in a signal control strip incoded manner. which comprises striking from the strip partially severedlids in coded areas, and leveling the partially severed lidssubstantially into the plane of said strip to render said lids yieldingin code manner in response to mechanical sensing operations.

4. The method of forming a record tape in code manner which comprisesretaining the entiretape in the record form and weakening the tape incoded areas to render it yielding in code mamier in response tomechanical sensing operations.

5. In a keyboard perforator, a plurality of key levers, a plurality ofcode bars displaceable in accordance with the depression of selectedones of said key levers, permutation bars controlled by said code bars,a plurality of punches, punch interponents controlled by saidpermutation bars, and a die plate so conformed as to cooperate with saidpunches to produce lidded apertures in a record strip in conformancewith the operation of said punch interponents.

6. In a keyboard perforator, a plurality of key levers, a plurality ofcodebars displaceable in accordance with the depression of selected onesof said key levers, permutation bars controlled by said code bars, aplurality of punches, punch interponents controlled by said permutationbars, a die plate so conformed as to cooperate with said punches toproduce lidded apertures in a record strip in conformance with theoperation of said punch interponents, and spring-loaded ejectorscooperative with said punches to level said lids substantially into theplane of said strip to facilitate feeding of said strip stepwise.

'7. In a keyboard perforator, a plurality of key levers, a plurality ofpunches, punch interponents controlled by said key levers, and a dieplate so conformed as to cooperate with said .punches'to produce liddedapertures in a record a plurality of circular V 2,273,910 strip inconformance with the operation of said punch interponents.

8. In a keyboard periorator, a plurality of key levers, a plurality ofpunches, punch-interponents controlledby said key levers, a die plate soconformed as to cooperate with said punches to produce lidded aperturesin a record strip in conformance with the operation of said punchinterponents, and spring-loaded ejectors coop- ,erativewith said punchesto level said lids substantially into the plane of said strip tofacilitate feeding of said strip stepwise.

9 The method of preparing signal control strips, comprising the steps:of'striking from a lid forming operation.

contiguous length of strip partially severed lids transversely of saidstrip according to a coded pattern, retaining the contiguity of saidstrip, and advancing the strip to present a suceeding transverse area oithe strip preparatory to the CARL W. SWAN.

